VS-32-L
23
Fig. 2: Insertion of strap.
Fig. 3: Service switch strap B9.
306
B9
B10
7. Functional description
7.1. Process description
7.1.1.
Insertion of strap
Before the insertion of the strap into
the
TITAN strapping head
type
VS-12-L
attention must be paid that
the beginning of the strap has been
cut cleanly and sprightly. The
beginning of the strap is then inserted
into the guide rolls
(306)
until the
resistance of the conveying roller
(392)
is sensed.
Following that, switch
B9
on the
SEK01
is actuated, which then
triggers the lifting cylinder
Z1
and the
transport rocker. Then the strap can
be slipped further.
After releasing switch
B9
the rocker
lowers down and the strap is clamped
between conveying roll and counter
roller
(420)
; therefore, it is ready for
the feed of the strap.
Should strap be inserted from a
greater distance, a switch for the lifting
of the conveying rocker has to be
provided at the machine!
Caution!
Use protective gloves when inserting strap.
7.1.2.
Feed of strap, medium speed
At the tone of the
start signal
the 5/3-port directional control valve
Y3
is selected.
The transport motor
M1
is switched on and transports the strapping material
through the conduit system at 1,7 m/s, until the strap stop
B1
is reached.
Simultaneously, a timer is processed (strap circulation control) which interrupts
the transport of strap when the maximum strap transporting time is exceeded
(breakaway of strap or resistances in the conduit).
Before the strapping head is reached switch
B14
in the conduit is triggered: it
switches off the transport of strap fast movement
Y2
and switches on medium
speed
Y1
.
The medium speed can be set on the pressure controller
DR3
.
Note!
When readjusting the medium section, the setting of the strap
tension is altered!
B 13 GB 33/06